<svg xmlns="http://www.w3.org/2000/svg"
     width="300" height="300" viewBox="0 0 300 300" >
  <style>
    line { stroke: black; stroke-width: 5px; }
  </style>

  <line x1="50px" y1="50px" x2="250px" y2="50px"
        style="stroke-dasharray: 5px, 10px">
  </line>

  <line x1="50px" y1="100px" x2="250px" y2="100px"
        style="stroke-dasharray: 5px, 10px; stroke-dashoffset: 5px;">
  </line>
  <line x1="50px" y1="150px" x2="250px" y2="150px"
        style="stroke-dasharray: 5px; stroke-dashoffset: 5px;">
  </line>

</svg>
